Clutch mechanism.



J. A. SVENS'SON. cLuTcH MEcH'AmsM.

APPLICATION FILED OCT. 31, 1912. Y 1,177,661. Patented Apr. 4,1916.

'2 SHEETS-SHEET 2.

UmTED STATES PATENT OFFICE. s

JOHAN ALFRED svENssoN, or ROCHESTER, NEW YORK, AssIGNoR, RY MEsNE AssIGN- MENTS, T LANDIS TOOL COMPANY, 0F WAYNESBORO, PENNSYLVANIA, A CORPO-4 RATION OF PENNSYLVANIA.

CLU'rcH MEGHANISM.

Specification of Letters Patent.

Patented Apr. 4, 1916.

Application led October 31, 1912. Serial N o. 728,829.

To all wtom t mayy concern:

Be it known that I, JOHAN ALFRED SvENssoN, of Rochester, in the county of Monroe and State of New York, have invented certain new and useful Improvements in Clutch scription' of the same, referencey being hadi to the accompanying drawings, forming a part of this specification, and to the reference-numerals marked thereon. j

My present invention has for its object to provide a clutch mechanism adapted for use-in connection with various classes of machinery, especially where the parts must necessarily be made compact land the operation of the machine requires a delicacy in the action of the clutch mechanism.

My invention has for its further object to provide a mechanism of this' character by means` of which forward and reverse motions may'alternately be imparted to separate driven elements arranged in juxtaposition to each other. l

To these and other ends the invention con'- sists incertain improvements and combinationsof parts all as will be hereinafter more f ully described, the novel features being pointed out in 'the claims at the en'd of the specification.

In the drawings: Figures 1 and 2 are cen- -tral longitudinal sectional views'of a clutchV mechanism constructed inV accordance with my invention, the first showing the4 parts in the neutraler inoperative position and` the second showing them in one position of adjustment. F ig.` 3 is a cross sectional view taken on the line 3x 34x of Fig. 1. Fig. 4 is a detail side elevation of the outer 'clutch pinions with which meshes the gear wheell D to which motion is imparted in a forward The two pinions are each provided with direction by the pinion B and inthe reverse direction bythe pinion C, according to thedirection of rotation of the shaft A 'when one or the other of the other of these pinions is connected thereto by the clutch devices.

' surfaces band c of the pinions.

b and c', are provided 4on the inner or vproximate ends of the respective pinions.

Twoclutch members are employed for effectin"g the connection between the driving shaft ormember A and the driven members or pinions B and C. One of these clutch members is provided with means'adapted to engage the outer clutch faces of the two pinions when shifted axially relatively thereto in opposite directions and the other clutch member isarranged to ccperate with the inner clutch surfaces when similarly adjusted. Between the two clutch members are arranged operating devices actuated by a'z suitable controller, serving to simultaneously actuate the two clutchmembers so opposite ends or faces of one or the other of disengaged fromboth pinions and occupy a neutral position as shown inLFig. 1.

In the clutch mechanism illustrated the clutch Imembers are shown as concentric sleeves surrounding the shaft A and each composed of a number of separateA parts to facilitate their construction, the assembling of the parts of the clutch v ment. The inner clutch member, or sleeve, E extends through both of the pinions and at its extremities carries conical clutchyportions or heads B and C', fixed to the sleeve by keys e and each adjustable longitudinally thereon. by nuts e and e2 into proper working relationship 'with the conical clamping diate of the latter the sleeve E is provided with elongated apertures receiving keys 4 secured in suitable keyways or recesses in the shaft A, said keys and slots also serving to permit uthe longitudinal movement of the clutch sleeves relatively to each other andV that they may be causedto engage with the l.

the two pinions, as shown in Fig. 2, or to be v and as adjuge Interme'- to the shaft A, but preventing their rotative movement thereon and further serving as the driving connection betweensaidshaft and clutch members. Y

The outer clutch member is composed of the friction shoes at its ends in they form .of

rings B2, C2 having theouter conical surfaces adapted to coperate with the inner clutch surfaces bf and c', said rings being held in relatively xed positions by pins 4a. and 4b at the opposite ends of the keys '4 which enter suitable apertures or recesses as shown. Fitted to the shoes are collars 6 and 7, the edges of which, indicated' by 6a andl 7a, constitute opposing shoulders employed for. the purpose of moving the outer sleeve 1n oppositepdirections as will be more fully explained. .Elements constituting an operating conconsists in providing on nection between the two clutch members are provided whereby these` may be simultaneously actuated in opposite directions and one meansV ofA carrying out my Vinvention the concentric sleeve opposing shoulders or abutments with which Vwedge members coperate; these being actuated by a shiftable controller. In

' the arrangementof the parts illustrated the inner sleeve Eis shown as provided with a Way,

ring or vabutment 8 threaded thereon intermediate to the shoulders 6a and 7a and also slotted to receive projections onthe keysA 4-4, which, when vthe parts are assembled, prevent the displacing of the ring 8. The latter'isbeveled on its opposite sides forming-the inclined. shoulders -8a and 8*which oppose the shoulders 6a and 7a of the outer clutch member'or sleeve; thespaces between said pairs of shoulders constituting raceways 1n which the wedge members such asv rows of antifriction balls 68 and 7 8 are placed. Thedistance between the shoulders 6% and '7a is less than the combined diameter of theb'alls 68 and 7 8 andthe abutment ring 8 and the angular are so proportionedthat' the rows of balls 68 and 7 8 will occupy the position shown in Fig. .1 when the clutch members are Eadjusted in neutral..- position. When one row of balls is forced lin the bottom of its racethe clutch `members will be 4moved in directions to engage the ,outer1 and opposite v inner clutch faces of one of the two driven pinions, the parts being shown adjusted in this position in Fig.v 2. The bevel faces of the abutment 8 are also of such a length that they will serve to force one row of wedge balls outwardly when the other row is actuating Y i the present instance crowded into its raceway.

' The controlling member employed for the wedge members comprises in a ring or sleeve 9,.hav ing the two inside cam ysurfaces 9a and 9b, which, when the ring is adjusted axially, co-

operate wlth the respective rows of balls Ashifting the, ring 9, as or finger 10 vfitting the annular groove 9 inv having faces 8a, 8b of the latter, .v

" chattering ofl said members in all positions of adjustparts when operated tol pick up the load. y.

Any suitable device l'may be employed for for instance, a pin the sleeve and carried on a lever or operating member 1I. c f, A

Av clutch mechanism embodying my in-` vention'is simple in construction andjcomprises few parts bled and adjusted. The arrangementfof the clutch sleeves surrounding the .shafty and the disposal of their operatingfcoinec- A 90 inthe space between the two pinions affords 1 a very compact structure and utilizes the tions and the shiftable controlling rl'neniber space required by the gear wheel D.

A further advantage obtaixedby the dis-v posal of the parts in the manner .described and illustrated is found in theoperation of the clutchv membersin opposite directions tol which may be easily assemsimultaneously engage opposite-ends `of a pinion as this action grasps the pinionA and locks it to the shaft without impartiiigany additional friction or strain-to the bearing in which it is carried,

I claim as my invention: 1. In a clutch mechanism,

with two driven members spaced apart,.e`ach an outer and an inner clamping sur-. face, ofa member shiftable into .alternate engagement with said outer surfaces, ond member -also adjustable engagement with said inner surfaces ating connections' between the two rs thevcombination i' for causingthemtojengagethe outer fand'iny ner surfaces of the same driven member and means for driving said two drivenfmenibers.

2. Ina clutch mechanism, the combination with two revoluble driven membersheld in spaced relation and in alinement, each having an inner and an outer' clamping surface, of two driving clutch members, one adapted to coperate with the two outer surfaces and the other to coperate with the two inner surfaces of nsaid driven members and means for moving said clutch members alternately in opposite directions into driving engage# ment with 4the respective outer andinner' surfaces of one or the other of said driven members. a v y 3. In aclu'tch mechanism,lthe combination with two rotary members to be driven, bear.-

ings supporting said vmembers inspaced relation, of two clutch members, both adapted to engage opposite sides of each driven member and means for operating said members relativelyto each other to simultaneously coperate with one or the other of said driven members.

4:. In a clutch mechanism, the combination with two members to be driven supported in alinement and each having clamping faces on their inner and outer ends, of a clutch member extending through the driven members and adapted to engage said outer faces, a second clutch member disposed between the driven members and adapted to copeiatewith said inner faces and means for operating the two clutch members, to ad.- just them both into engagement with one or the other of said driven members.

5. In a clutch mechanism, the combination with a driving shaft and two driven members thereon, each having aninside and an outside clutch surface, of clutches coperating with the outside surfaces, a clutch coperating with said inner surfaces and means for simultaneously operating said clutches to engage the inner and outer faces of one driven member and disengage the corre7 sponding faces of the other driven member.

6,. In a clutch mechanism, the combination with two tubular driven members journaled in alinement, each provided with an outer and an inner clutch face, of a clutch .member extending through said driven members and having parts adapted when the clutch member is shifted to engage with one or the other of said driven members, means for driving the clutch member and means for shifting it longitudinally.

7 In a clutch mechanism, the combination with two tubular driven members, journal boxes supporting them and a driving shaft extending through said members, of a sleeve keyed to the shaft and also extending through said members having heads adapted to engage the outer faces of the driven members and means for shifting said sleeve into engagement with one or the other of said members.

8. In' a reversing clutch mechanism, the

combination with a driving shaft, two drivenbevel gear pinions thereon, and a gear wheel meshing with both pinions, said pinions being provided upon their proximate ends with clutch faces and having bearing hubs at the ends of which are also provided outer clutch faces and journal bearings supporting said hubs, of a sleeve carried on the shaft and extending -through the pinions and having heads adapted to coperate with said outer faces, a clutch member interposed between the pinions and means for moving the sleeve and clutch member in opposite directions and into engagement with one or the other of said pinions.

9. In a clutch, the combination with driving andJ driven members -and two clutch alined tubular pinions journaled therein' having outer clutch faces and inner clutch faces on their proximate ends, a clutch member extending through both pinions having heads adapted to engage the outer faces and a separate clutch head surrounding the member and adapted to alternately engage the inner faces, of sets of opposing cam shoulders arranged on the, clutch member and clutch head forming raceways between them, sets of wedge members in saidways, and an actuating member .surrounding said wedges and shiftable axially to operate therein and cause the clutch member and clutch head to simultaneously lcooperate with one orv the other of said pinions.

JOHAN ALFRED SVENSSON. Witnesses:

ALBERT J. CHRIST, F. E. PRovos'r. 

